Dreams are often an elegant means of highlighting problems ______ in the present or the past.

Hiring the right employee ________ you ________ a thousand times over in high employee morale. 

Dreams are often an elegant means of highlighting problems________  in the present or the past．

In ______, an employee died in a fatal bomb attack on a McDonald’s restaurant in France.

In _____, an employee died in a fatal bomb attack on a McDonald’s restaurant in France.

In______,an employee died in a fatal bomb attack on a McDonald's restaurant in France.

______ it or not , his discovery has created a stir in scientific circles.

Duty is an act or a course of action that people __________you to take by social customs, law or religion.

Duty is an act or a course of action that people ______you to take by social customs, law or religion.

Project ______is an uncertain event or condition that，if it occurs，has a positive or a negative effect on at least one project objective，such as time，cost，scope，or quality．

______no air or water, there would be no life in the world.

In speed reading, looking at your watch every 5 or 10 minutes ______.